Would you like some instructions how to turn the enclosed Google Map into a uMap? We recommend it over the proprietary mapping provider for various reasons. See many examples of uMaps at http://umap.openstreetmap.fr/ or have a read of

Creating a new map with a unique URL with uMap is easy. It can be updated simultaneously from up to four computers at the same time, but be careful concurrent editing of the same layer is not possible - it will delete data! Therefore we would suggest that you handle the editing of your map carefully, designating 2/3 map curators who can coordinate their editing work. Once you will have created a new map with uMap, it is easy to scroll over the icons to find the tools that you need to add locati…